He stopped at the bar, sat at the counter and said to the bartender girl: "Tomorrow is my last day...". Every now and then there are people who come to this town to figure out the purpose of their life through the "Butterfly machine". That machine tells you the meaning of your whole life, not the purpose that you invented for yourself, but the one that was embedded into your chip, the one with which you were born. After you find out, you have only one day of your life to act...
She decides to accompany him to find out too.